Author : Henry M. Reitz
Release : 1978
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National Dam Safety Program. Jim Bair Dam (MO 30020), Missouri - Kansas City Basin, St. Charles County, Missouri. Phase I Inspection Report - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook National Dam Safety Program. Jim Bair Dam (MO 30020), Missouri - Kansas City Basin, St. Charles County, Missouri. Phase I Inspection Report write by Henry M. Reitz. This book was released on 1978. National Dam Safety Program. Jim Bair Dam (MO 30020), Missouri - Kansas City Basin, St. Charles County, Missouri. Phase I Inspection Report available in PDF, EPUB and Kindle. The dam is an earth structure built in the uplands of Sehrt Creek, 2-1/2 miles from the edge of the Missouri River Valley. There is no principal spillway. There are two emergency spillways. At the east end is an emergency spillway about 180 feet long on a flat grade in virgin soil approximately 50 feet wide and 3 feet deep. At the west end is a smaller capacity spillway which is a dip in a road with low point more than 2 feet higher. Our inspection and evaluation indicates the dam is deficient in that the spillways are inadequate. The guidelines for a dam having the above size and hazard potential require that the spillway be capable of passing a one-half PMF (Probable Maximum Flood). A 25% PMF will begin to overtop the dam. The dam and spillways are adequate to contain the 100-year flood. Our inspection and evaluation indicate significant tree and underbrush growth on both faces of the dam which could lead to conditions causing rupture of the dam. Other deficiencies found are lack of erosion protection on the upstream slope of the dam, no effective erosion protection on the spillways and lack of seepage and stability analyses records.